What is acute allergic urticaria?
Disease description:
Recently, the child's school has been promoting medical knowledge, and I learned about the condition called acute allergic urticaria. I would like to know what acute allergic urticaria is.
Doctor's answer (1)
Dr. Wang Xiaoyan
Acute allergic urticaria, also known as acute urticaria, is a hypersensitivity reaction typically characterized by the sudden appearance of erythematous wheals of varying sizes on the skin, accompanied by severe itching and a burning sensation. These wheals usually resolve spontaneously within half an hour to several hours, but new lesions may repeatedly develop, appearing and disappearing intermittently, with multiple episodes possible within a single day. The onset of acute urticaria is often rapid, and in severe cases may be accompanied by symptoms of anaphylactic shock such as palpitations, restlessness, nausea, vomiting, and even hypotension. Some patients may experience involvement of the gastrointestinal tract or laryngeal mucosa, leading to corresponding symptoms. This condition is mainly caused by multiple exogenous and endogenous allergenic factors, such as foods, medications, and environmental factors, and tends to recur easily. In terms of treatment, the primary goal is to actively identify and avoid allergenic factors, while selecting appropriate anti-allergic medications according to the severity of the condition.
